Dangerous B&O sound system issue

[KTLW33]

@rugedraw - If the ACM drives the the tweeters & rear door speakers, then I am even more confused because only my tweeters work & in theory if the tweeters are working then the rear door speakers should work, right??.

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[rugedraw]

@rugedraw - If the ACM drives the the tweeters & rear door speakers, then I am even more confused because only my tweeters work & in theory if the tweeters are working then the rear door speakers should work, right??.

Correct. The rear door speakers are known to produce sounds at a lower level than the front speakers. Many people have complained about this. Try putting the fade all the way to the back and turn the volume up.

 

[KTLW33]

Thanks for the suggestion @rugedraw just gave it a shot and that did not work. Faded all the way to the back, turned it all the way up and complete silence.

 

[rugedraw]

Thanks for the suggestion @rugedraw just gave it a shot and that did not work. Faded all the way to the back, turned it all the way up and complete silence.

Not sure what's going on, but I've pulled the wiring diagrams for both B&O set ups and that's how it's wired.

 

[JJSnell]

Not sure what's going on, but I've pulled the wiring diagrams for both B&O set ups and that's how it's wired.

This is what you and I were talking about recently on another thread. Regardless of what the schematics are saying it doesn't appear to be correct. Now KTL and I have ran similar tests and have the exact same conclusion.

Side note:
There is a pretty well known discrepancy in '66 Mustangs that every wiring diagram on the planet shows a distributor wire to be one color and yet ever Mustang has a different colored wire. I was too young and pre-internet to spend hours, looking for and trying to find correct wiring harnesses for a car I was building back in the day, probably hours and hours wasted all to find out the wire was the one I was avoiding using....

 

[KTLW33]

Does anyone happen to know the DSP part number? The part number that my dealer ordered and they said is on Backorder was ML3T18T806AM, but from my research that is the Amp, not the DSP. @Ford Motor Company can you please chime in here and confirm this is the correct part number for the DSP & if the DSP is really backordered with no ETA on a recovery date??

Update: This is interesting, got in my truck today & all the speakers worked, stop went into a store & when I started the truck again, back to only the tweeters working. The dealership said the DSP module was dead & not communicating, with the speakers randomly working that makes me think it is not dead, but they did not do the updated as described in service bulletin 50739. Thoughts????

 

[RocketFistMooga]

Ok it finally happened to me. Driving down the road after looking at Christmas lights with my family. I go to turn the radio on the listen to Christmas music and BAAAM!!!!! A static explosion through the speakers then a clicking sound. It was deafening. My wife screamed. Baby cried. It was terrible. Pulled off the road after almost crashing. Turned truck off then back on and the clicking went away. Drove the rest of the way home in fear. Ok guys……what do I do?

 

[Nasto]

Ok it finally happened to me. Driving down the road after looking at Christmas lights with my family. I go to turn the radio on the listen to Christmas music and BAAAM!!!!! A static explosion through the speakers then a clicking sound. It was deafening. My wife screamed. Baby cried. It was terrible. Pulled off the road after almost crashing. Turned truck off then back on and the clicking went away. Drove the rest of the way home in fear. Ok guys……what do I do?

Ask your dealer to flash your system with this update.

 

[m_bt54]

Ask your dealer to flash your system with this update.

I only had the issue once. My dealer applied this update a few days later and I haven’t had it happen again.

 

[Severdog]

I just got it for the first time last night. Was about 2 minutes into a drive and it sounded like an M60 machine gun going off in the cab. Super loud and piercing.

After I was able to clear it there was no volume control (stayed on zero) for the rest of that trip. Re-starting the truck still showed the same issue with volume control until I selected a different audio input.

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